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arXiv 0909.1713cs.NI
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尺寸很重要(在P2P直播中)

Size Does Matter (in P2P Live Streaming)

Nidhi Hegde, Fabien Mathieu, Diego Perino

摘要:

先前已经针对对等直播流应用研究了最佳传播方案。直播是一个延迟敏感的应用程序,微调传播参数是至关重要的。在这份报告中,我们研究了块的最佳大小,数据交换的单位,和探测集,数量对等一个给定的节点探测传输块之前。块大小可以对扩散速率(块未命中率)、扩散延迟和开销具有显著影响。探测集的大小也会影响这些指标,主要是通过可用于块分发的选择。我们进行广泛的模拟所谓的随机对等,最新有用的传播计划。我们的研究结果表明,尺寸确实很重要,在这两种情况下,最佳尺寸都不会太小。

英文摘要:

Optimal dissemination schemes have previously been studied for peer-to-peer live streaming applications. Live streaming being a delay-sensitive application, fine tuning of dissemination parameters is crucial. In this report, we investigate optimal sizing of chunks, the units of data exchange, and probe sets, the number peers a given node probes before transmitting chunks. Chunk size can have significant impact on diffusion rate (chunk miss ratio), diffusion delay, and overhead. The size of the probe set can also affect these metrics, primarily through the choices available for chunk dissemination. We perform extensive simulations on the so-called random-peer, latest-useful dissemination scheme. Our results show that size does matter, with the optimal size being not too small in both cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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